This paper presents an overview of the use of solar energy for domestic water heating purposes. In addition, the results of a preliminary research to develop a low cost system for heating water using solar energy, a green energy source is also included. For the system presented herewith, the absorption of sunrays radiated heat is by means of a thermal collector. The heating and recirculation process are automatically controlled using sensors, actuators, and a Programmable Logic Controller (PLC). The results obtained indicates that the system presented have the potential to supply enough hot water to meet the requirements for domestic consumption.